Answer / palpandi.a

L.E=230 v(If single phase),
=440 v(If three phase),
E.N=1.7 v(If proper earthing),
=2 v(Acceptable),
If these are exceded concentrat on earthing.Maintain earth
resistance is <1 omh.

Answer / ravikumar josyula

If the neutral of the system is earthed then the voltage
between Live condutor and earth is line voltage/ squre root
of 3.i.e, 415 volts is L-L voltage then the voltage L - E
is 239 volts.

Voltage between Neutral and earth should not exceed 5
volts.if it exceeds the earthing was not proper. needs
attention on earthing.

why transformers not work at d.c.-

3 Answers  

---

What is the difference between single phase, 2phase, and 3 phase motors?

2 Answers  

---

AC voltage only create magnetic flux in coils, but in Solenoid coil how 24V DC volt create flux and pick the plunger

5 Answers  

---

what is the best electrical system i.e substation sytem of 11kv/.433kv for a township. if township have 300nos substation of 11kv. we have to go G.O.D.O. fuse unit or Compact Substation Unit. please reply Asap.

2 Answers  

---

why 2 phase is used in argc furnace? why 6 phase is used in converting machinery?

1 Answers  

---

It is advisable 2 use auto-transformer if transformation ratio is-a)110KV/11KV,b)230kv/110kv,c)110kv/66kv,d) 400kv/230kv

2 Answers  

---

its Kva and Kv are same?

3 Answers  

---

How many types of losses occur in a transformer?

0 Answers  

---

1. Design a counter which counts 0, 4, 8, 2, 6, and repeats using: 1.a using JK flip flops 1.b using T flip flops 1.c using D flip flops

0 Answers  

---

how to select the cables based on amps ratings ? how to calculate the amps and how to select the cable size

1 Answers   JV Electricals,

---

PLS MENTION QUESTIONS ASKED IN IOCL INTERVIEW FOR ELECTRICAL EGG??

0 Answers  

---

what is the differents and advantages of Electro magnetics relay and static relay ? what is the numerical relay ? advatages?......

7 Answers   CAT, L&T, TCS,

---